Transactions with General Partner and its Affiliates - Schedule of Amounts Paid and/or Accrued to General Partner and its Affiliates (Details) - USD ($)	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Related Party Transactions [Abstract]
Management fees	$ 66,771	$ 66,034
Overhead allowance	5,387	5,327
Other outsourced administrative fees	0	488
Reimbursement for out-of-pocket expenses	2,500	2,500
Cash distribution due to partner	120	26
Total general partner expense	$ 74,778	$ 74,375

Total general partner expenses paid by Partnership for the current period.

No definition available.

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Namespace Prefix:	dival_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Reimbursement for general partner's out-of-pocket expenses.

+ References

No definition available.

+ Details

Name:	dival_ReimbursementForOutOfPocketExpenses
Namespace Prefix:	dival_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of expense for administrative services provided to the limited liability company (LLC) or limited partnership (LP) by the managing member or general partner, affiliate of managing member or general partner, or affiliate of LLC or LP, for example, but not limited to, salaries, rent, or overhead costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

Name:	us-gaap_AdministrativeFeesExpense
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Distributions from earnings to the general partner of a partnership included in the consolidated financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_GeneralPartnerDistributions
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of expenses related to the managing member or general partner for management of the day-to-day business functions of the limited liability company (LLC) or limited partnership (LP).

+ References

+ Details

Name:	us-gaap_ManagementFeeExpense
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Balance Type:	debit
Period Type:	duration

- Definition

Professional and contract service expense includes cost reimbursements for support services related to contracted projects, outsourced management, technical and staff support.

+ References

No definition available.

+ Details

Name:	us-gaap_ProfessionalAndContractServicesExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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